Quantum sensing of time dependent electromagnetic fields with single electron excitations

TL;DR

This paper explores using single electron interferometers to detect and analyze the quantum state of electromagnetic radiation at extremely short time scales, enabling new insights into light's fundamental properties.

Contribution

It introduces a novel approach employing electronic Mach-Zehnder interferometers with single electron excitations to probe quantum electromagnetic fields in the time domain.

Findings

Potential for sub-nanosecond to pico-second time resolution in quantum radiation detection

Feasibility of probing squeezed radiation and edge magnetoplasmons with single electron interferometers

Implications for fundamental light properties in microwave to tera-Hertz domains

Abstract

In this study, we investigate the potential of electronic interferometers for probing the quantum state of electromagnetic radiation on a chip at sub-nanosecond time scales. We propose to use single electron excitations propagating within an electronic Mach-Zehnder interferometer in the Aharonov-Bohm dominated regime. We discuss how information about the quantum state of the electromagnetic radiation is encoded into the interference contribution to the average outgoing electrical current. By investigating squeezed radiation and single edge magnetoplasmons probed by Leviton pulses in a realistic setup, we show that single electron interferometers have the potential to probe quantum radiation in the time domain with sub-nanosecond to pico-second time resolution. Our research could have significant implications for probing the fundamental properties of light in the microwave to tera-Hertz domains at extremely short time scales.